Remove Python 2.7 support, add Python 3.8 support

.travis.yml

@@ -15,18 +15,18 @@ env:
 
 matrix:
   include:
-    - python: "2.7"
-      dist: trusty
-      env: DJANGO=1.11 COVERAGE="coverage run -m" TEST_K="not ddns_client" TEST_OPTS="--pep8"
     - python: "3.5"
-      dist: trusty
-      env: DJANGO=1.11
+      dist: xenial
+      env: DJANGO=2.2
     - python: "3.6"
-      dist: trusty
-      env: DJANGO=1.11
+      dist: xenial
+      env: DJANGO=2.2
     - python: "3.7"
       dist: xenial
       env: DJANGO=2.2
+    - python: "3.8"
+      dist: xenial
+      env: DJANGO=2.2 COVERAGE="coverage run -m" TEST_K="not ddns_client" TEST_OPTS="--pep8"
 
 install:
     - ./scripts/travis/install.sh

setup.py

@@ -29,7 +29,7 @@ setup(
     platforms='any',
     setup_requires=['setuptools_scm'],
     install_requires=[
-        'dnspython<1.17.0',  # 1.16 is last with py27 support
+        'dnspython',
         'netaddr',
         'django>=2.2.0',
         'django-bootstrap-form',
@@ -46,12 +46,11 @@ setup(
         'License :: OSI Approved :: BSD License',
         'Operating System :: OS Independent',
         'Programming Language :: Python',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
         'Topic :: Internet :: Name Service (DNS)',
     ],
 )